A PCR test is often considered the gold standard for detecting coronavirus infection. It’s the test some employers want employees to take before returning to work after having Covid-19, and the one ...

The US government’s free at-home Covid-19 test program will be suspended Friday, according to the Administration for Strategic Preparedness and Response. Since November, residential households in the ...

The rollout of the US government’s Covid-19 test-to-treat program is underway, with in-pharmacy clinics ordering shipments of Covid-19 antiviral medications and some locations expecting to offer the ...

CNN: How long should people isolate? Wen: The day that you take your positive test is day zero. If you had symptoms before then, say the day before, that day is day zero—whichever is first. Day 1 is ...